User's Manual

WIFI-2-R821USA1A
Dual Band 11ac USB WiFi Module with RTL8821AU
四川爱联科技有限公司
Sichuan iLink Technology Co.,Ltd. page
14 of 22
3.8 IEEE 802.11ac HT20 Section:
Items Contents
Specification IEEE802.11ac HT20 @ 5GHz
Mode OFDM
Channel CH36 to CH165
Data rate (MCS index)
Nss1 MCS0/1/2/3/4/5/6/7/8
Nss2 MCS0/1/2/3/4/5/6/7/8
TX Characteristics Min. Typ. Max. Unit Remark
1. Power Levels
1)10dBm Target 8 10 12 dBm *
2. Spectrum Mask @ Target Power
1) at fc +/-11MHz - - -20 dBr
2) at fc +/-20MHz - - -28 dBr
3) at fc > +/-30MHz - - -40 dBr
3. Constellation Error(EVM) @ Target Power
1) Nss1 MCS0 - - -5 dB
2) Nss1 MCS1 - - -10 dB
3) Nss1 MCS2 - - -13 dB
4) Nss1 MCS3 - - -16 dB
5) Nss1 MCS4 - - -19 dB
6) Nss1 MCS5 - - -22 dB
7) Nss1 MCS6 - - -25 dB
8) Nss1 MCS7 - - -27 dB
9) Nss1 MCS8 - -34 -30 dB
4. Frequency Error -20 - 20 ppm
RX Characteristics Min. Typ. Max. Unit
5. Minimum Input Level Sensitivity
1) Nss1 MCS0 (PER ≦10%)
- -85 -82 dBm
2) Nss1 MCS1 (PER ≦10%)
- -82 -79 dBm
3) Nss1 MCS2 (PER ≦10%)
- -80 -77 dBm
4) Nss1 MCS3 (PER ≦10%)
- -77 -74 dBm
5) Nss1 MCS4 (PER ≦10%)
- -73 -70 dBm
6) Nss1 MCS5 (PER ≦10%)
- -69 -66 dBm
7) Nss1 MCS6 (PER ≦10%)
- -68 -65 dBm
8) Nss1 MCS7 (PER ≦10%)
- -67 -64 dBm
9) Nss1 MCS8 (PER ≦10%)
-62 -59 dBm
6. Maximum Input Level (PER ≦10%)
-30 - - dBm
*power by rate off